How to brush my teeth?

Brushing helps remove a sticky film of bacteria called plaque. The bacteria in plaque breaks down tooth enamel, which can cause cavities. Figth tooth decay and gum disease by brushing your teeth twice a day. 
 
Brush your teeth a least twice a day, morning and nigth, for two minutes.
Use a soft, small-headed toothbrush and fluoride toothpaste. Your toothbrush should be placed at a 45 degree angle to your gums. 
Brush gently and thoroughly by moving the brush and forth in short, tooth-wide strokes. 
Brush all the surfaces of all your teeth including the inner tooth surfaces and chewing surfaces. Use the "toe" of the brush for the inner front tooth surfaces And don't forget to brush the top surface of your tongue. 
Change your toothbrush every three months to ensure you always get a proper clean and help avoid harmful bacteria building up on the bristles.